Home / 7,143.73-10,716.30-2,985.04

Finding the Fourth Proportional to 7,143.73, 10,716.30 and 2,985.04

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Solution

The fourth proportional to 7,143.73, 10,716.30 and 2,985.04 is: 4,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.73 : 10,716.30 = 2,985.04 : x
  2. Step 2: Convert to fraction form
    7,143.73/10,716.30 = 2,985.04/x
  3. Step 3: Cross multiply
    7,143.73x = 10,716.30 × 2,985.04
  4. Step 4: Simplify right side
    7,143.73x = 31,988,537.27
  5. Step 5: Solve for x
    x = 31,988,537.27/7,143.73
  6. Step 6: Final answer
    x = 4,477.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.